Vortex Question

Hello all-
Question-
Does anyone know what type of pedal the stereo pedal jacks need on the
Vortex? I checked the pedals I have and they interrupt the connection
and work fine in the mono pedal jacks-
Do the stereo jacks (for A/B switch, register/preset, etc.) need a pedal
that creates a connection?? I broke out the multitester to be sure
that the adapter setup I have is not mixing the signals and I don't
think it is-
Thanks!
Still awaiting my EDP...
Clifford